Networking

Build Linux from the ground up and see what really happens under the hood. From firmware and bootloader to kernel, libc, init, networking and security, this book strips the system down to its essentials while explaining why every piece exists, what depends on it and how far you can push minimalism.

Modern networks like the Internet — explained as simply as possible — but no simpler.

A practical reference for securing real-world OT, ICS and SCADA environments.Roadmap for engineers, CISOs, and consultants to master industrial cybersecurity. Learn to secure ICS, SCADA, and Industry 4.0 environments, apply IEC 62443 & NIS 2, and build robust defense-in-depth architectures—from real-world attack analysis to practical incident response.

This isn't a book to put on a shelf. It's meant to be used, tested, and adapted as you build your networking skills. In this new edition, I've been working on making the teaching flow better and making technical stuff clearer without overwhelming you. You'll get the basics down, like how C++ works well with TCP/IP and how sockets are the foundation for communication. Then, I'll show you how to build real client-server apps, set up IP addressing, and use protocols like HTTP, FTP, SMTP, IMAP, and DNS directly through C++ code. Each example is practical and you can actually implement it. It shows you not just how something works, but why it matters in real networking scenarios.

Service Provider Networks in many ways are unique networks. Many services might be serving millions of customers, so there might be many paths between different parts of the network as you will see in the book. There are many different types of Service Providers but there is very little information about some of them.

Most ENCOR guides tell you what a protocol does. This one shows you the whole configuration, the output that proves it works, and the exact line that tells you when it doesn't.

Self-hosting from home sounds simple until CGNAT, changing IPv6 prefixes and double NAT get in the way. This book shows you how to build Linux infrastructure that actually works on the real Internet, with practical architectures, working configurations and troubleshooting techniques that help you understand what is really happening to your packets.

BGP security is more than a set of filters and policies. This book takes a practical, systems-level look at securing routing infrastructure, from RPKI and route filtering to monitoring, automation and incident response, with real configurations, code examples and lessons from incidents that have shaped how the Internet is secured.

The latest version of WebAssembly has arrived and it has some really cool new features. I knew that I had to completely rewrite this book to make sure it was up to date. Now, here we are. Within this book, I will take you from the very basics of memory, control flow, and the mechanics that make Wasm work, through to compiling multiple languages, building multi-threaded applications, and optimising for real-world performance.

From the fundamentals of TCP/IP to advanced packet manipulation and analysis techniques, we have delved deeply into the core concepts that power modern networks. The practical examples and hands-on approach were created to teach you real-world skills that you can immediately apply to your projects. Whether you're developing network applications, troubleshooting network issues, or automating network tasks, the knowledge in this book will help you succeed.

Linux Advanced for SysAdmin is designed to elevate your expertise, focusing on the intricate tasks critical for managing enterprise-level Linux environments. This book is structured to provide comprehensive insights and practical experiences across seven key areas, transforming you into a proficient and capable system administrator.This book will transform you into a proficient and capable system administrator, ready to tackle the challenges of modern IT infrastructure. By mastering these advanced topics, you will be wellequipped to manage and optimize large-scale Linux environments, ensuring their security, performance, and reliability

Whether you’re exposing APIs to partners, building microservices, or connecting legacy systems, API Gateways sit at the heart of your infrastructure. This book takes you step by step through architecture, security, traffic control, OpenAPI validation, and real-world deployment. With vendor-neutral guidance and practical examples using the open-source Membrane API Gateway, it’s a hands-on resource for API developers, architects, and platform teams.

This reference volume consists of revised, edited, cross-referenced, and thematically organized articles from the Software Diagnostics and Observability Institute and the Software Diagnostics Library (former Crash Dump Analysis blog) about software diagnostics, root cause analysis, debugging, crash and hang dump analysis, and software trace and log analysis written from 15 April 2024 to 14 November 2025.

Build real-time data systems that can keep up with the demands of production. Streaming at Scale takes you under the hood of Apache Flink, covering state, event time, exactly-once processing, performance, Kubernetes and more. With runnable examples and practical lessons, it shows how to build systems that are fast, reliable and ready to scale.

Learn to build fast, scalable asynchronous applications in C with libuv, the cross-platform library behind Node.js. Through practical examples and clear explanations, you'll master event-driven programming and write high-performance software that runs efficiently across Linux, macOS and Windows.